Re: [RFC 2/3] ARM: sunxi: do not select COMMON_CLK to fix builds

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On Mon, Nov 16, 2020 at 10:36:12PM -0600, Samuel Holland wrote:
> On 11/15/20 11:09 AM, Krzysztof Kozlowski wrote:
> > COMMON_CLK is a user-selectable option with its own dependencies.  The
> > most important dependency is !HAVE_LEGACY_CLK.  User-selectable drivers
> > should not select COMMON_CLK because they will create a dependency cycle
> > and build failures.  For example on MIPS a configuration with COMMON_CLK
> > (selected by SND_SUN8I_CODEC) and HAVE_LEGACY_CLK (selected by
> > SOC_RT305X) is possible:
> 
> Ah, that makes sense.
> 
> > 
> >   WARNING: unmet direct dependencies detected for COMMON_CLK
> >     Depends on [n]: !HAVE_LEGACY_CLK [=y]
> >     Selected by [y]:
> >     - SND_SUN8I_CODEC [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] &&
> >       (ARCH_SUNXI || COMPILE_TEST [=y]) && OF [=y] && (MACH_SUN8I || ARM64 && ARCH_SUNXI || COMPILE_TEST [=y])
> > 
> >     /usr/bin/mips-linux-gnu-ld: drivers/clk/clk.o: in function `clk_set_rate':
> >     (.text+0xaeb4): multiple definition of `clk_set_rate'; arch/mips/ralink/clk.o:(.text+0x88): first defined here
> > 
> > Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> > ---
> >  arch/arm/mach-sunxi/Kconfig | 1 +
> >  sound/soc/sunxi/Kconfig     | 2 +-
> >  2 files changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> > index eeadb1a4dcfe..4d9f9b6d329d 100644
> > --- a/arch/arm/mach-sunxi/Kconfig
> > +++ b/arch/arm/mach-sunxi/Kconfig
> > @@ -4,6 +4,7 @@ menuconfig ARCH_SUNXI
> >  	depends on ARCH_MULTI_V5 || ARCH_MULTI_V7
> >  	select ARCH_HAS_RESET_CONTROLLER
> >  	select CLKSRC_MMIO
> > +	select COMMON_CLK
> 
> This is not necessary, since ARCH_SUNXI depends (through ARCH_MULTI_V{5,7}) on
> ARCH_MULTIPLATFORM, which selects COMMON_CLK already.

Thanks. I'll send a v2 with changes and your review.

Best regards,
Krzysztof



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